1// Copyright 2009,2010 The Go Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style 3// license that can be found in the LICENSE file. 4 5// NetBSD system calls. 6// This file is compiled as ordinary Go code, 7// but it is also input to mksyscall, 8// which parses the //sys lines and generates system call stubs. 9// Note that sometimes we use a lowercase //sys name and wrap 10// it in our own nicer implementation, either here or in 11// syscall_bsd.go or syscall_unix.go. 12 13package unix 14 15import ( 16 "runtime" 17 "syscall" 18 "unsafe" 19) 20 21// SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets. 22type SockaddrDatalink struct { 23 Len uint8 24 Family uint8 25 Index uint16 26 Type uint8 27 Nlen uint8 28 Alen uint8 29 Slen uint8 30 Data [12]int8 31 raw RawSockaddrDatalink 32} 33 34func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) 35 36func sysctlNodes(mib []_C_int) (nodes []Sysctlnode, err error) { 37 var olen uintptr 38 39 // Get a list of all sysctl nodes below the given MIB by performing 40 // a sysctl for the given MIB with CTL_QUERY appended. 41 mib = append(mib, CTL_QUERY) 42 qnode := Sysctlnode{Flags: SYSCTL_VERS_1} 43 qp := (*byte)(unsafe.Pointer(&qnode)) 44 sz := unsafe.Sizeof(qnode) 45 if err = sysctl(mib, nil, &olen, qp, sz); err != nil { 46 return nil, err 47 } 48 49 // Now that we know the size, get the actual nodes. 50 nodes = make([]Sysctlnode, olen/sz) 51 np := (*byte)(unsafe.Pointer(&nodes[0])) 52 if err = sysctl(mib, np, &olen, qp, sz); err != nil { 53 return nil, err 54 } 55 56 return nodes, nil 57} 58 59func nametomib(name string) (mib []_C_int, err error) { 60 // Split name into components. 61 var parts []string 62 last := 0 63 for i := 0; i < len(name); i++ { 64 if name[i] == '.' { 65 parts = append(parts, name[last:i]) 66 last = i + 1 67 } 68 } 69 parts = append(parts, name[last:]) 70 71 // Discover the nodes and construct the MIB OID. 72 for partno, part := range parts { 73 nodes, err := sysctlNodes(mib) 74 if err != nil { 75 return nil, err 76 } 77 for _, node := range nodes { 78 n := make([]byte, 0) 79 for i := range node.Name { 80 if node.Name[i] != 0 { 81 n = append(n, byte(node.Name[i])) 82 } 83 } 84 if string(n) == part { 85 mib = append(mib, _C_int(node.Num)) 86 break 87 } 88 } 89 if len(mib) != partno+1 { 90 return nil, EINVAL 91 } 92 } 93 94 return mib, nil 95} 96 97func direntIno(buf []byte) (uint64, bool) { 98 return readInt(buf, unsafe.Offsetof(Dirent{}.Fileno), unsafe.Sizeof(Dirent{}.Fileno)) 99} 100 101func direntReclen(buf []byte) (uint64, bool) { 102 return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen)) 103} 104 105func direntNamlen(buf []byte) (uint64, bool) { 106 return readInt(buf, unsafe.Offsetof(Dirent{}.Namlen), unsafe.Sizeof(Dirent{}.Namlen)) 107} 108 109//sysnb pipe() (fd1 int, fd2 int, err error) 110func Pipe(p []int) (err error) { 111 if len(p) != 2 { 112 return EINVAL 113 } 114 p[0], p[1], err = pipe() 115 return 116} 117 118//sys Getdents(fd int, buf []byte) (n int, err error) 119func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) { 120 n, err = Getdents(fd, buf) 121 if err != nil || basep == nil { 122 return 123 } 124 125 var off int64 126 off, err = Seek(fd, 0, 1 /* SEEK_CUR */) 127 if err != nil { 128 *basep = ^uintptr(0) 129 return 130 } 131 *basep = uintptr(off) 132 if unsafe.Sizeof(*basep) == 8 { 133 return 134 } 135 if off>>32 != 0 { 136 // We can't stuff the offset back into a uintptr, so any 137 // future calls would be suspect. Generate an error. 138 // EIO is allowed by getdirentries. 139 err = EIO 140 } 141 return 142} 143 144const ImplementsGetwd = true 145 146//sys Getcwd(buf []byte) (n int, err error) = SYS___GETCWD 147 148func Getwd() (string, error) { 149 var buf [PathMax]byte 150 _, err := Getcwd(buf[0:]) 151 if err != nil { 152 return "", err 153 } 154 n := clen(buf[:]) 155 if n < 1 { 156 return "", EINVAL 157 } 158 return string(buf[:n]), nil 159} 160 161// TODO 162func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { 163 return -1, ENOSYS 164} 165 166func setattrlistTimes(path string, times []Timespec, flags int) error { 167 // used on Darwin for UtimesNano 168 return ENOSYS 169} 170 171//sys ioctl(fd int, req uint, arg uintptr) (err error) 172 173//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL 174 175func IoctlGetPtmget(fd int, req uint) (*Ptmget, error) { 176 var value Ptmget 177 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value))) 178 runtime.KeepAlive(value) 179 return &value, err 180} 181 182func Uname(uname *Utsname) error { 183 mib := []_C_int{CTL_KERN, KERN_OSTYPE} 184 n := unsafe.Sizeof(uname.Sysname) 185 if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil { 186 return err 187 } 188 189 mib = []_C_int{CTL_KERN, KERN_HOSTNAME} 190 n = unsafe.Sizeof(uname.Nodename) 191 if err := sysctl(mib, &uname.Nodename[0], &n, nil, 0); err != nil { 192 return err 193 } 194 195 mib = []_C_int{CTL_KERN, KERN_OSRELEASE} 196 n = unsafe.Sizeof(uname.Release) 197 if err := sysctl(mib, &uname.Release[0], &n, nil, 0); err != nil { 198 return err 199 } 200 201 mib = []_C_int{CTL_KERN, KERN_VERSION} 202 n = unsafe.Sizeof(uname.Version) 203 if err := sysctl(mib, &uname.Version[0], &n, nil, 0); err != nil { 204 return err 205 } 206 207 // The version might have newlines or tabs in it, convert them to 208 // spaces. 209 for i, b := range uname.Version { 210 if b == '\n' || b == '\t' { 211 if i == len(uname.Version)-1 { 212 uname.Version[i] = 0 213 } else { 214 uname.Version[i] = ' ' 215 } 216 } 217 } 218 219 mib = []_C_int{CTL_HW, HW_MACHINE} 220 n = unsafe.Sizeof(uname.Machine) 221 if err := sysctl(mib, &uname.Machine[0], &n, nil, 0); err != nil { 222 return err 223 } 224 225 return nil 226} 227 228func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { 229 if raceenabled { 230 raceReleaseMerge(unsafe.Pointer(&ioSync)) 231 } 232 return sendfile(outfd, infd, offset, count) 233} 234 235func Fstatvfs(fd int, buf *Statvfs_t) (err error) { 236 return Fstatvfs1(fd, buf, ST_WAIT) 237} 238 239func Statvfs(path string, buf *Statvfs_t) (err error) { 240 return Statvfs1(path, buf, ST_WAIT) 241} 242 243/* 244 * Exposed directly 245 */ 246//sys Access(path string, mode uint32) (err error) 247//sys Adjtime(delta *Timeval, olddelta *Timeval) (err error) 248//sys Chdir(path string) (err error) 249//sys Chflags(path string, flags int) (err error) 250//sys Chmod(path string, mode uint32) (err error) 251//sys Chown(path string, uid int, gid int) (err error) 252//sys Chroot(path string) (err error) 253//sys Close(fd int) (err error) 254//sys Dup(fd int) (nfd int, err error) 255//sys Dup2(from int, to int) (err error) 256//sys Dup3(from int, to int, flags int) (err error) 257//sys Exit(code int) 258//sys ExtattrGetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) 259//sys ExtattrSetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) 260//sys ExtattrDeleteFd(fd int, attrnamespace int, attrname string) (err error) 261//sys ExtattrListFd(fd int, attrnamespace int, data uintptr, nbytes int) (ret int, err error) 262//sys ExtattrGetFile(file string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) 263//sys ExtattrSetFile(file string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) 264//sys ExtattrDeleteFile(file string, attrnamespace int, attrname string) (err error) 265//sys ExtattrListFile(file string, attrnamespace int, data uintptr, nbytes int) (ret int, err error) 266//sys ExtattrGetLink(link string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) 267//sys ExtattrSetLink(link string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) 268//sys ExtattrDeleteLink(link string, attrnamespace int, attrname string) (err error) 269//sys ExtattrListLink(link string, attrnamespace int, data uintptr, nbytes int) (ret int, err error) 270//sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error) 271//sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_POSIX_FADVISE 272//sys Fchdir(fd int) (err error) 273//sys Fchflags(fd int, flags int) (err error) 274//sys Fchmod(fd int, mode uint32) (err error) 275//sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) 276//sys Fchown(fd int, uid int, gid int) (err error) 277//sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error) 278//sys Flock(fd int, how int) (err error) 279//sys Fpathconf(fd int, name int) (val int, err error) 280//sys Fstat(fd int, stat *Stat_t) (err error) 281//sys Fstatat(fd int, path string, stat *Stat_t, flags int) (err error) 282//sys Fstatvfs1(fd int, buf *Statvfs_t, flags int) (err error) = SYS_FSTATVFS1 283//sys Fsync(fd int) (err error) 284//sys Ftruncate(fd int, length int64) (err error) 285//sysnb Getegid() (egid int) 286//sysnb Geteuid() (uid int) 287//sysnb Getgid() (gid int) 288//sysnb Getpgid(pid int) (pgid int, err error) 289//sysnb Getpgrp() (pgrp int) 290//sysnb Getpid() (pid int) 291//sysnb Getppid() (ppid int) 292//sys Getpriority(which int, who int) (prio int, err error) 293//sysnb Getrlimit(which int, lim *Rlimit) (err error) 294//sysnb Getrusage(who int, rusage *Rusage) (err error) 295//sysnb Getsid(pid int) (sid int, err error) 296//sysnb Gettimeofday(tv *Timeval) (err error) 297//sysnb Getuid() (uid int) 298//sys Issetugid() (tainted bool) 299//sys Kill(pid int, signum syscall.Signal) (err error) 300//sys Kqueue() (fd int, err error) 301//sys Lchown(path string, uid int, gid int) (err error) 302//sys Link(path string, link string) (err error) 303//sys Linkat(pathfd int, path string, linkfd int, link string, flags int) (err error) 304//sys Listen(s int, backlog int) (err error) 305//sys Lstat(path string, stat *Stat_t) (err error) 306//sys Mkdir(path string, mode uint32) (err error) 307//sys Mkdirat(dirfd int, path string, mode uint32) (err error) 308//sys Mkfifo(path string, mode uint32) (err error) 309//sys Mkfifoat(dirfd int, path string, mode uint32) (err error) 310//sys Mknod(path string, mode uint32, dev int) (err error) 311//sys Mknodat(dirfd int, path string, mode uint32, dev int) (err error) 312//sys Nanosleep(time *Timespec, leftover *Timespec) (err error) 313//sys Open(path string, mode int, perm uint32) (fd int, err error) 314//sys Openat(dirfd int, path string, mode int, perm uint32) (fd int, err error) 315//sys Pathconf(path string, name int) (val int, err error) 316//sys Pread(fd int, p []byte, offset int64) (n int, err error) 317//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) 318//sys read(fd int, p []byte) (n int, err error) 319//sys Readlink(path string, buf []byte) (n int, err error) 320//sys Readlinkat(dirfd int, path string, buf []byte) (n int, err error) 321//sys Rename(from string, to string) (err error) 322//sys Renameat(fromfd int, from string, tofd int, to string) (err error) 323//sys Revoke(path string) (err error) 324//sys Rmdir(path string) (err error) 325//sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK 326//sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) 327//sysnb Setegid(egid int) (err error) 328//sysnb Seteuid(euid int) (err error) 329//sysnb Setgid(gid int) (err error) 330//sysnb Setpgid(pid int, pgid int) (err error) 331//sys Setpriority(which int, who int, prio int) (err error) 332//sysnb Setregid(rgid int, egid int) (err error) 333//sysnb Setreuid(ruid int, euid int) (err error) 334//sysnb Setrlimit(which int, lim *Rlimit) (err error) 335//sysnb Setsid() (pid int, err error) 336//sysnb Settimeofday(tp *Timeval) (err error) 337//sysnb Setuid(uid int) (err error) 338//sys Stat(path string, stat *Stat_t) (err error) 339//sys Statvfs1(path string, buf *Statvfs_t, flags int) (err error) = SYS_STATVFS1 340//sys Symlink(path string, link string) (err error) 341//sys Symlinkat(oldpath string, newdirfd int, newpath string) (err error) 342//sys Sync() (err error) 343//sys Truncate(path string, length int64) (err error) 344//sys Umask(newmask int) (oldmask int) 345//sys Unlink(path string) (err error) 346//sys Unlinkat(dirfd int, path string, flags int) (err error) 347//sys Unmount(path string, flags int) (err error) 348//sys write(fd int, p []byte) (n int, err error) 349//sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error) 350//sys munmap(addr uintptr, length uintptr) (err error) 351//sys readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ 352//sys writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE 353//sys utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error) 354 355/* 356 * Unimplemented 357 */ 358// ____semctl13 359// __clone 360// __fhopen40 361// __fhstat40 362// __fhstatvfs140 363// __fstat30 364// __getcwd 365// __getfh30 366// __getlogin 367// __lstat30 368// __mount50 369// __msgctl13 370// __msync13 371// __ntp_gettime30 372// __posix_chown 373// __posix_fchown 374// __posix_lchown 375// __posix_rename 376// __setlogin 377// __shmctl13 378// __sigaction_sigtramp 379// __sigaltstack14 380// __sigpending14 381// __sigprocmask14 382// __sigsuspend14 383// __sigtimedwait 384// __stat30 385// __syscall 386// __vfork14 387// _ksem_close 388// _ksem_destroy 389// _ksem_getvalue 390// _ksem_init 391// _ksem_open 392// _ksem_post 393// _ksem_trywait 394// _ksem_unlink 395// _ksem_wait 396// _lwp_continue 397// _lwp_create 398// _lwp_ctl 399// _lwp_detach 400// _lwp_exit 401// _lwp_getname 402// _lwp_getprivate 403// _lwp_kill 404// _lwp_park 405// _lwp_self 406// _lwp_setname 407// _lwp_setprivate 408// _lwp_suspend 409// _lwp_unpark 410// _lwp_unpark_all 411// _lwp_wait 412// _lwp_wakeup 413// _pset_bind 414// _sched_getaffinity 415// _sched_getparam 416// _sched_setaffinity 417// _sched_setparam 418// acct 419// aio_cancel 420// aio_error 421// aio_fsync 422// aio_read 423// aio_return 424// aio_suspend 425// aio_write 426// break 427// clock_getres 428// clock_gettime 429// clock_settime 430// compat_09_ogetdomainname 431// compat_09_osetdomainname 432// compat_09_ouname 433// compat_10_omsgsys 434// compat_10_osemsys 435// compat_10_oshmsys 436// compat_12_fstat12 437// compat_12_getdirentries 438// compat_12_lstat12 439// compat_12_msync 440// compat_12_oreboot 441// compat_12_oswapon 442// compat_12_stat12 443// compat_13_sigaction13 444// compat_13_sigaltstack13 445// compat_13_sigpending13 446// compat_13_sigprocmask13 447// compat_13_sigreturn13 448// compat_13_sigsuspend13 449// compat_14___semctl 450// compat_14_msgctl 451// compat_14_shmctl 452// compat_16___sigaction14 453// compat_16___sigreturn14 454// compat_20_fhstatfs 455// compat_20_fstatfs 456// compat_20_getfsstat 457// compat_20_statfs 458// compat_30___fhstat30 459// compat_30___fstat13 460// compat_30___lstat13 461// compat_30___stat13 462// compat_30_fhopen 463// compat_30_fhstat 464// compat_30_fhstatvfs1 465// compat_30_getdents 466// compat_30_getfh 467// compat_30_ntp_gettime 468// compat_30_socket 469// compat_40_mount 470// compat_43_fstat43 471// compat_43_lstat43 472// compat_43_oaccept 473// compat_43_ocreat 474// compat_43_oftruncate 475// compat_43_ogetdirentries 476// compat_43_ogetdtablesize 477// compat_43_ogethostid 478// compat_43_ogethostname 479// compat_43_ogetkerninfo 480// compat_43_ogetpagesize 481// compat_43_ogetpeername 482// compat_43_ogetrlimit 483// compat_43_ogetsockname 484// compat_43_okillpg 485// compat_43_olseek 486// compat_43_ommap 487// compat_43_oquota 488// compat_43_orecv 489// compat_43_orecvfrom 490// compat_43_orecvmsg 491// compat_43_osend 492// compat_43_osendmsg 493// compat_43_osethostid 494// compat_43_osethostname 495// compat_43_osetrlimit 496// compat_43_osigblock 497// compat_43_osigsetmask 498// compat_43_osigstack 499// compat_43_osigvec 500// compat_43_otruncate 501// compat_43_owait 502// compat_43_stat43 503// execve 504// extattr_delete_fd 505// extattr_delete_file 506// extattr_delete_link 507// extattr_get_fd 508// extattr_get_file 509// extattr_get_link 510// extattr_list_fd 511// extattr_list_file 512// extattr_list_link 513// extattr_set_fd 514// extattr_set_file 515// extattr_set_link 516// extattrctl 517// fchroot 518// fdatasync 519// fgetxattr 520// fktrace 521// flistxattr 522// fork 523// fremovexattr 524// fsetxattr 525// fstatvfs1 526// fsync_range 527// getcontext 528// getitimer 529// getvfsstat 530// getxattr 531// ktrace 532// lchflags 533// lchmod 534// lfs_bmapv 535// lfs_markv 536// lfs_segclean 537// lfs_segwait 538// lgetxattr 539// lio_listio 540// listxattr 541// llistxattr 542// lremovexattr 543// lseek 544// lsetxattr 545// lutimes 546// madvise 547// mincore 548// minherit 549// modctl 550// mq_close 551// mq_getattr 552// mq_notify 553// mq_open 554// mq_receive 555// mq_send 556// mq_setattr 557// mq_timedreceive 558// mq_timedsend 559// mq_unlink 560// mremap 561// msgget 562// msgrcv 563// msgsnd 564// nfssvc 565// ntp_adjtime 566// pmc_control 567// pmc_get_info 568// pollts 569// preadv 570// profil 571// pselect 572// pset_assign 573// pset_create 574// pset_destroy 575// ptrace 576// pwritev 577// quotactl 578// rasctl 579// readv 580// reboot 581// removexattr 582// sa_enable 583// sa_preempt 584// sa_register 585// sa_setconcurrency 586// sa_stacks 587// sa_yield 588// sbrk 589// sched_yield 590// semconfig 591// semget 592// semop 593// setcontext 594// setitimer 595// setxattr 596// shmat 597// shmdt 598// shmget 599// sstk 600// statvfs1 601// swapctl 602// sysarch 603// syscall 604// timer_create 605// timer_delete 606// timer_getoverrun 607// timer_gettime 608// timer_settime 609// undelete 610// utrace 611// uuidgen 612// vadvise 613// vfork 614// writev 615